Rho Aurigae (ρ Aur, ρ Aurigae) is the Bayer designation for a binary star system in the northern constellation of Auriga. It is faintly visible to the naked eye with an apparent visual magnitude of +5.22. Judging by parallax measurements, this system is approximately 530 light-years (160 parsecs) distant from the Earth, give or take a 30 light-year margin of error.
This is a single-lined spectroscopic binary system wherein the presence of a companion object is revealed by shifts in the stellar spectrum. The pair orbit each other with a period of 34.49 days and an eccentricity of 0.10. The primary component of this system is a B-type main sequence star with a stellar classification of B3 V. The secondary may be a B- or A-type star.
Read more about Rho Aurigae: Name